[TVI-RFI-EMI] Anyone observed damage to the "guard wiregrounds"?

[KD7JYK DM09]

I can only base my comments on observations and skills learned in tracking
such things down, so:

"so I just want to say yes a power line issue can be 30 miles away"

Absolutely.  Anything line of sight can be an issue.  In a region where
valleys are 20-40 by fifty to sixty miles at times with little more than
high-tension lines and comm sites with a few ranches and small communities,
one bad line can generate hash interfering with communications over a few
hundred square miles.

"but the conditions are extremely rare and very few of you, if any, that are
reading this will ever experience those conditions."

Except when they exist, then it's reality time...

"I would also bet that a cracked ground feeding one commercial building
didn't cause RFI up to over 1000 MHz at 18+ miles away."

No, not a ground, a 220VAC 100A feed under an unknown load, a cracked clamp
on the transformer secondary.  18 square miles, not miles away, I covered an
area of roughly 3x6 miles in a grid pattern, possibly more, may have been
twenty to twenty five square miles, I didn't head into the hills or down
into the flats, didn't care much about tumble weeds or a lake bed  with no
power lines.

"That is very unrealistic."

It was not the ground wire, I did not say it was in my initial post.  It is
very possible the noise covered many, many square miles more, but I stopped
looking when I located the cracked clamp when I passed it, looked in my
rear-view mirror and saw what appeared to be a street light where there
wasn't one a moment before.  It was a 3"-4" spew of pink-orange sparks
eminating from the crack.  The local line-man arrived within a half-hour,
replaced the clamp, the noise ceased.

Within the next month or two, I will try to locate the source of noise that
is so bad throughout HF and VHF to the point that it gets into a comm site
seven miles out of town and blankets an entire city and engulfs the
surrounding valley.  In that region they have one dips--t line-man who tries
to scare people away from complaining with a BS story of "It's $1,000 per
pole to check them", to avoid doing his job.  What a crock, it's his job and
someone elses money, not his or the consumers, no doubt this one will get
nasty.

Kurt